[Webkit-unassigned] [Bug 199895] New: [WHLSL] MTLComputePipelineState creation fails with "Compiler encountered an internal error." message

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=199895

            Bug ID: 199895
           Summary: [WHLSL] MTLComputePipelineState creation fails with
                    "Compiler encountered an internal error." message
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGPU
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: justin_fan at apple.com

The following WHLSL code fails to compile:

  [numthreads(1, 1, 1)]
  compute void sort_0(device uint[] numbers : register(u0),
                      float3 localID        : SV_GroupThreadID) 
  {
      device uint[1] data;

      uint localIndex = uint(localID.x);

      data[localIndex] = numbers[0];
  }

It makes it all the way to MTLComputePipelineState creation; the Metal creation call then fails with the error "Compiler encountered an internal error."

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